Perforating, slitting, and rewinding machine.



J. A. CAMERON & G. B. BIRCH. PERFORMING, SLITTING, m) REWINDINGM'ACHINE.

4 SHEET$-$HEET l- -1: as, anemia Patented Feb. 19, 1918.

APPLICATION HLED AUG.3. I915.

J A. CAMERON (St 6. B. BIRCH.

PERFORMING, SUTTING, AND REWINDING MACHINE.

APPLiCATlON FILED AUG-3. :915.

1256,6589 Patented Feb.19,191ts.

4 SHEETS-SHEET 2.

1. A. CAMERON & G. 8. B|RCH. PERFORMING, sunmu, AND aewmome MACHINE APPLICATION FILED AUG3, IBIS- v Patented Feb. 19, 1918,

4 SHEETS-SHEET 3.

J. A...CAMERON 6L G B. BlRCH PERFORMING, SLlTTlNG, AND REWINDING MACHINE.

APPLICATION FILED AUG.3. 19H. I 1,256,658. Patented Feb. m, 1.9123.

4 SHEETS SHEET 4V.

States,

sTATEs "PATENT OFFICE.

111118 A, CAMERON sun eusrar nmenn BIRCH, or BROOKLYN, M.- w 1 am; assionons IO CAHEI RQN MACHINE COMPANY, OF BROOKLYN, NEW

.NEW. YORK.

roux, AQOBPORATION or PERFORATING, SLITTING, AND REWINDING MACHINE.

To all whom it may concern;

. Be it known that we, LADIES A. CAMERON and GUSTAF B. Bison, citizens or the United and residents of the borough of Brooklyn, in the countyof Kings, city and State of New York, have invented certain new and useful Improvements in Perforating,"Slitting,- and .Rewinding Machines, of whichthe following is a specification.

Thepresent invention relates generally to a machine for slitting, perforating and -re winding webs of material.

" Certain classes of paper manufacture, such.

as paper toweling or the like, require transfvers e weakening lines or perforations and rcquire further thereafter to be rewound into hard or tight coils in order to get the maximum; of paper within a given diameter of roll ,..and to make a neat and compact roll We liave fonnd, if a center rewinding device 115' utilized to rewind matcrlal having weak-' ening lines transversely thereof, that in order to windthe coil tightly an undue amount f of stress has" to be exerted bythe rewindingshaft, and this force acting directly against the weakening lines in the web will'have a tendency to cause a transverse severance of theweb along said'weakening lines.

. \Ve have found that the paper may be re,- Wound into tight or hard coils by means of pressure rolls-acting against the surface of the coil to be rewound, without exerting an undue stress upon the weakening lines of the material. I =Accorclingly one feature of the invention resides; in a machine combining a means for producing transverse weakening lines in a H web of material, together with means for re- 1 .-winding the web into coil form consisting 401 f: of rollers engaging the surface of the reof a rotatable rewinding shaft and a plura ity fwound'coil'undcr pressure to prevent undue pulling; stress sufiicient to sever the web transversely along t lig weakening'lines.

" Whe the webof material is not only weakened transverselyatdifferent intervals but also slitted lengthwise before being re "Qwou'n'd', w'e find that relatively narrow web ".f s ect'ions h'aving'weakening lines are. more .by ove'rpullingthan when a relatively wide readily severedalong those weakening lines web of; paper having transverse weakening 'lines is being rewound. Anotherfeature ofthe invention 15 topro Specification ofLccters Patent.

product madeby the machine.

- Patented. Feb.19,1918.

Applicationfiled August 3, 1915. Serial No. 43,370.

vide means for slitting and rewinding the web in sucha Way that the sections will have substantially the same power to'resist' being torn as, a relatively wide web having weakening lines. v 4 F The invention further consists "1' a ma; chine in which there are provided means for severing the web lengthwise into-sections with a scalloped out, together with means.- for rewinding-the sections in coil form with the scalloped edges in interlocked relation but without interweavin Slitting the web withfa scalloped or on:- dulating cut and maintaining thescalloped edges of adjacent web sections interlocked without distorting the edges out of the plane of severance without interweaving, seems to diminish to but a very slight-degree the power of resistance to longitudinal stresses possessed by the unslitted web; I

Another advantage flows from the scalloped slitting of the web, in that aconsiderable saving of material, is effected since the width-oi the Web, section so slitted-will be measured from thepeakof the scallop, and

-. saving of the width of the scalloped edge,

one-half of the distance being savedon each side of the web sectiom The invention is disclosed in a concrete and preferred form .in-the accompanying drawings, froinwhich embodiment,-however, changes ,ina'y be made without departing from the scope of the invention. 1 In thesaiddrawingsz' 0' Figure 1 is a side elevation of portion of a' perforating, slitting and rewindin'g' machine, with parts in section, embodying the invention.

. Fig. 2 is a'vertical' sectional view'jof the1,

parts shown in Fig. 1, taken substantiallyon the li.ne.2'--2 of Fig. 3. t y 1 Fig. 3 is aplan view, with parts insection, of the deviceshown in Figs, Land '2.

Fig. is a; detail edge 'i f One ofzthe 19o ng Figs. 5-,.6, T'a'nd'S are views showing the;

Similar characters of reference ndieatg 'rtei e difiemiit- 1 ed from" t he r0112 over. iiwsflld thfa i'pce 'hetwpen the nielhbors 4 and 5 after whichjit ms in a straight path between the 'backroller 6 and the slitting members 7 and thence to the rewinding shaft 9. 'where the material is rewound between the rollers 6, 9 and 10.

The guide roller 3 is mounted on an arm 11 which is pivoted at 12 and provided at its upper end with a cam member 13 pivoted at 14 and provided with a handle extension 15. This cam member acts against a spring-actuated plunger 16 seated in the socket 17 and normally urged toward the cam member 13 by the spring 18' which is adjustable by means of the nuts 19. When the handle 15 is moved upwardly from the position shown in Fi s. 1 and 2, the cam member 13 will be turne and the curved portion thereof will be brought against the spring-actuated plun ger 16. This will swing the arm 1.1 around the pivot 12 and more the roller 3 away from the perforating member 4. When the handle 15 is moved downwardly into the position shown in Figs. 1 and 2 the roller 3 is moved into engagement with the perforating member 4 and is held in locked position and under spring tension by reason of the engagement o the spring-actuated engaging plunger 16 with the cam member 13.

The perforating member A- has a cylinder having longitudinal notches or grooves 17 for the reception of the perforating knives 18 suitably mounted on the perforating member 5.

The 'rewinding device comprises the back ing roller 6, the rewinding roller 9 and the ressure roller 10, together with the rewinding shaft 8. This rewinding shaft 8 is rotatable butnot driven positively by any instrumentality. The ends of this rewinding shaft 8 project intothe guides 18 which are formed on the members 19 sliding in suitable guides, not shown, in the framework of the machine. Carried by the members 19 is further the pressure roller 10. It will be understood that the arrangement is double, there being a member 19 on each side of the machine. These two members 19"may be made to move in unison by having rack portions 20 at their lower ,ends engaging with pinions 21, one on each side of the machine, mounted on the common shaft 22. If desired the pressure roller 10 or the members 19 may be weighted so as to increase the pressure-under which the coil 23 is being rewound.

'Preferably the surface of the backing roller 6 is glass-hardened and is sufiiciently harder than the slitting guides 7 so as to prevent the latter from cutting into the surface of c said backing roller. Motion y be impartedto the elements in any suita leway and, as here shown, the mam drive is through the shaft 24: of the backing roller 6. 's backing roller drives the rewinding roller 9 the same direction by means of an intermediate pinion 25.

, means for rewindin Further, by means of the sprocket 26, chain 27 and sprocket 28 motion is imparted to the shaft 29 of the perforating member 5. Theshaft 29 in turn imparts motion to the members 4. and 3 by means of the chain of gears 30, 31 and 32.

One of the slitting members is shown in Fig. 4;, from which it will be seen that it is provided with a scalloped or undulating cutting edge 33.

The paper in passing between the perforating members is given the transverse perforations 34, such as are shown in Fig. 5. Gr if the contours of the. perforating elements are dilferent, they may be given per forations of the forln shown at 35 in Figs. 6 and 8, or at 36 in Fig. 7. After being )erforated the'papcr now passes between the 'iacking roller (5 and the slitting member 7. The slitting members 7 slit the web longitudinally with an undulating cut so as to provide scalloped side edges in the web sections, such .as are shown at 37 in Fig. 5. Or if the contour of the slitting members be different, such scalloped edges may be of the character shown at 38 in Fig. 6, or at 39 in Fig. 7. As seen from Fig. 3, the scalloped edges of adjacent web sections remain in interlocked relation, thereby retaining substantially the full resisting power of the unslitted web. The paper in passing between the backing roller 6 and the slitting members 7 is slit without being distorted out of the plane of severance, and the paper lies flat against the member 6 and passes around to the rewinding shaft 8. Here the combined ressure of the rollers 6, 9 and 10, the latter eing preferably also driven by suitable means well understood in the art, will serve to rewind the material tightly into compact or hard coils and this Without exerting an undue stress or overpu'lling on the web itself. By thismeans the tearing of the webs along the weakening lines is prevented. Also, while the scalloped edges of adjacent web sections are rewound into interlocked relation, there is no interweaving of adjacent coils, and after the rewinding operation is finished the coils can be readily separated.

The opposite ends of the pressure roller same diameter whereby one web section, if

several such are being rewoundside'by side,

p 10 are kept parallel by means of the racks willnot exert any greater pull at the point of severance than any other web What is claimed, is:

A slitting and rewindmg machine com prising: means for severing a web lengthsection.

wise into sections with a scallbped cut, and the sections into coil form.-w1th the sea oped edges in interlocked relation withoutinterweaving.

2. A slitting and rewinding machine com prising: means for forming weakening lines transversely of a web, means for severing the web lengthwise into sections with a scal loped cut, and'means for rewinding the sections into coil form with the scalloped edges in interlocked relation without interwea'w ing.

A. slitting and rewinding machine comprising: means for severing a web lengthwise into sections with a scalloped cut, and means for rewinding the sections into coil form with the scalloped edges in interlocked relation without interweaving, said means consisting of a rewinding shaft on which the Web sections are rewouncl and a rewinding roller engaging the surface of the rewound coils. 1

4. A slitting and rewindin machine comprising: cutting means inclu ing a me her having a tortuous cutting edge for sev ring a web lengthwise into sections with a sealloped cut, means for rewinding the sections into coil form with the scalloped edges in interlocked relation without interweaving, and means for guiding the Web in a straight path through the cutting means.

Signed at Brooklyn New York in the count of Kings and State of New York this 31st ay of July A. D. 1915.

JAMES A. CAMERON! o-UsTAF BIRGER BIRCH Witnesses I JOHN L. C. MAYER, Enwm S. KNUDBON. 

